基于低码率线性分组码的分组交织长度识别

摘要

交织长度的识别是交织器识别过程中重要的步骤,关系到纠错码识别和信息的获取,具有重要的研究价值。文中简要介绍矩阵分析法,针对矩阵分析法容错能力不强的缺点,借助码重分布的概念,提出利用块重分布识别低码率二进制线性分组码序列交织长度的方法。最后,对两种方法进行仿真对比,分析了各自的适用范围和容错能力。%The identification of the interleaver length is an important step in the process of interleaver identification. It is related to the identification of error-correcting codes and the obtainment of intercepted information. So it is necessary to study this issue. The method of matrix analysis is introduced. Against to the low tolerance of matrix analysis, the method of weight distribution is proposed to identify the length of interleaver based on the sequence of low code-rate binary linear block cedes. Finally, the two methods are simulated and compared for the scope and fault tolerance analysis.